Compare 20806 vs 20809
| Property | 20806 | 20809 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 1011 × 1031 | 208091 |
| Prime factorization | 2 × 101 × 103 | 20809 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 101, 103, 202, 206, 10403, 20806 | 1, 20809 |
| Number of properties | 0 | 5 |
| Additive primes | 1091st | |
| Harmonic primes | 859th | |
| Primes | 2344th | |
| Pythagorean primes | 1165th | |
| Twin primes (2nd member) | 355th | |
| Roman numberals | ||
| Base 2 | 1010001010001102 | 1010001010010012 |
| Base 3 | 10011121213 | 10011122013 |
| Base 4 | 110110124 | 110110214 |
| Base 5 | 11312115 | 11312145 |
| Base 6 | 2401546 | 2402016 |
| Base 7 | 1144427 | 1144457 |
| Base 8 | 505068 | 505118 |
| Base 9 | 314779 | 314819 |
| Base 10 | 2080610 | 2080910 |
| Base 11 | 146a511 | 146a811 |
| Base 12 | 1005a12 | 1006112 |
| Base 13 | 961613 | 961913 |
| Base 14 | 782214 | 782514 |
| Base 15 | 627115 | 627415 |
| Base 16 | 514616 | 514916 |